Disk-plow.



A. P. McKAY.

DISK now.

APPLICATION FILED JULY 1. I9l5.

Patented Mar. 21, 1916.

A. P. McKAY.

DISK PLOW.

APPLICATION man JULY 1. 1915.

Patented Mar. 21, 1916.

4 SHEETS-SHEET 2.

A. P. McKAY.

DISK PLOW.

APPLICATION FILED JULY 1. 1915.

Patented Mar. 21, 1916.

4 SHEETS-SHEET 3- A. P. McKAY.

DISK PLOW.

N FILE 1,176,581 I m5. Patented Mar. 21,1916.

4 SHEETS SHEET 4- UNITED STATES PATENT FFIGE.

AUGUSTA P. McKAY, OF ROME, GEORGIA, ASSIGNOR TO MCKAY DISC PLOW 00., OF ROME, GEORGIA, A CORPORATION OF GEORGIA.

DISK PLOW.

Application filed July 7, 1915.

To all whom it may concern:

Be it known that I, AL'oUsTA P. MGKAY, a citizen of the United States, residing at Rome, in the county of Floyd and State of Georgia, have invented certain new and useful Improvements in Disk Flows; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

lvly present invention relates to improvements in disk plows and subsoilers, and it is intended to provide a framework and operative parts made of steel, iron, or other suitable metal, in which the width of the furrows may be varied within limits at will, and in which the disks and subsoil blades are so arranged, relative to the draft beam, that the tendency of the one to tilt the beam laterally in one direction is counterbalanced by the tendency of the other to tilt the beam in the opposite direction.

My invention is also intended to provide an arrangement of the character described, which shall be simple in construction and able to stand the rough usage and exposure to weather to which such implements are ordinarily subjected.

My invention also includes other novel features, and other novel arrangements and combination of parts which will be more clearly understood after reference to the accompanying drawings, in which Figure 1 is a plan view of the complete in'iplement, omitting the seat and its attachment for the sake of clearness in the drawings; Fig. 2 shows a section through Fig. 1, along the line 2*2 of said figure, and looking in the direction of the arrows, the seat being shown in position; Fig. 3 is a rear view of the end of one of the draft beams, with the disk attachment and the su'isoiler attachment connected thereto; Fig. 4 is a perspective view of the main casting which is carried by the main frame and supports the draft beams; Fig. 5 is a perspective view showing a detachable block, adapted to be adjustably attached to the main casting to permit the lateral adjustment of the draft beam connected thereto: Fig. 6 is a ]')GlS])QCilVQ view showing details of the shifting lever and its locking sector; Fig. 7 is a perspective view showing Specification of Letters Patent.

Patented Mar. 21 1916.

Serial No. 38,495.

the arrangen'ient for adjusting the position of the draft rod; Figs. 8 and 9 show perspective views of the casting carrying the right-hand subsoiler; Fig. 10 is a perspective view of the casting in which the left-hand subsoiler is mounted; and Figs. 11 and 12 are perspective views showing the casting to which the disks are journaled.

A represents the main casting (shown in detail in Fig. l), which is adapted to slide laterally on the main frame, and comprises two cylindrical sleeves a, one at each side, which sleeves are preferably flanged at each end, as at a, and are connected together by the integral bed-plate (f and the head A which projects upwardly to form the fixed block A, which is perforated as at a to receive bolts for attaching said block to the outer draft beam, as will be hereinafter de scribed.

The bed-plate a is provided with an elongated slot a to engage the clamping bolt (7 of the movable block 13, and with the hole at to engage the rear end of the draft rod L, and with the hole a to receive the pivot of the shifting strap T, as will be hereinafter more fully described. This block B (shown in detail in Fig. 5) is provided with curved edges 7) and a flat base Z) to adapt it to fit snugly, but slide freely, in the channel in the main casting formed between the side sleeves c and the bed-plate a and this block 3 is perforated to receive the clamping bolt C, and also is perforated, as at If, to receive bolts attaching the same to the draft beam D.

In the drawings I have shown two draft beams, the one, D. securely attached to the block A projecting upward from the end of the main casting, and the other draft beam D secured to the movable block B which is adjustably mounted on the main casting by means of the clamping bolt C and nut c, which clamping bolt passes thro gh the elongated slot (1* in the main casting A. These draft beams D and D are of substantially similar construction, except that the inner draft beam is longer than the outer, so as to stagger the disks and suhsoiler attachments. There draft beams are preferably made of trussed construction. in wh ch parallel bars are used, spaced apart by thimhles r/ and secured together by bolts passing through said thimbles. The rear end of each draft beam is bent to project downward, as shown in Fig. 2, and to this downwardly projecting portion the castings or journal bearing blocks E, for the disks F and F, are attached; and at the lower end of the heel of each draft beam the housing block or casting for the shank ll of the subsoiler is secured.

The construction of the journal bearing blocks E for the disks F and F is shown in detail in Figs. 11 and 12, and the housings G and G for the shanks of the subsoilers are shown in detail in Figs. 8*9. These blocks E are set off to the left of the draft beam, while the subsoiler housings G and G are set off to the right of the draft beam, as shown most clearly in Figs. 1 and 2, so that any lateral pressure on the disks, tending to twist the beam laterally, will be compensated for by the counterbalancing pressure on the subsoilers. This arrangement causes the subsoiler point to run directly in the bottom of the disk furrow, and also balances the twisting effect of the plow disk and the subsoiler as described, The blocks E are secured to the left side of the respective draft beams by means of the bolts 0 passing through the bolt holes 6, and the disk is journaled in the bearing E and its journal is secured therein in the usual way. The two subsoiler housings G and G are substantially similar. except that the housing G is provided with a journal bearing 1 for the goose-neck I of the trail wheel, see Fig. 2, and with a tail lug adapted to engage the stop 2' carried by the rearwardly-projecting curved bar I, to which the wheel J is journaled in the usual way. This stop permits the trail wheel to swing to the left and to follow the furrow cut, and also permits it to swing to the left in turning the implement.

The housing blocks G and G are preferably curved, as shown in Figs. 8, 9 and 10, and provided with. a reinforcing web 5/". The front ends of these blocks are channeled as at to slip between the ends of the side bars constituting the draft beams, and are held in place by means of the bolts d passing through the bolt holes By this construction an extremely strong and rigid connection between the housing blocks for the subsoilers and the lower ends of the draft beams is secured. These housing blocks G and G are provided with rectangular slots G therethrough for the shanks of the subsoilers, which shanks are held in place by set screws h. The depth to which the subsoilers are to cut is readily adjusted by easing up on these clamp screws it, moving the shanks to the desired position and clamping the same. These slots G in the housing blocks G and G are preferably set at a slight angle to the perpendicular, so as to throw the foot of the subsoiler outward as shown in Fig. 3. This increases the leverage at which the subsoiler acts to counterbalance the twisting effect of the disk which acts in the opposite direction, as will be evident from examining Fig. 3. The seat X is attached to one of the draft beams in the usual or any convenient way.

The main casting A slides on the main frame, which is composed of the two transverse bars M and M connected together at opposite ends by the sector plates N and N carrying the sectors N and N respectively. These sector plates and sectors with the bars M and M form a rigid frame, in which the stub axles O of the wheels P are journaled. li voted as at 0 on these stub axles O are the levers Q carrying the housings Q in which the spring pawl 0 is mounted. which spring pawl is connected by the rod to the handle These housings Q are connected by links Q to the stub axles near the hubs of the wheels, as shown in Figs. 1 and 2, and by withdrawing the pawl q, and raising or lowering on the lever Q, either end of the main frame may be raised or lowered relative to the hub of its wheel. as desired; and thus the main frame may be kept parallel with the ground while the furrow wheels P and J are running in their respective furrows.

In order to shift the main casting A laterally on the main frame, I provide a sector R secured to the cross bar M by means of the U-bolts and nuts. and projecting forward beneath the front cross bar M. Pivoted to the forward portion of this sector R is the shifting lever S. which is connected to the main casting by means of the link T. It will be obvious that swinging this lever S to the right. or to the left, will move the casting A along the cross bars M and M, thus varying the width of the first furrow as desired. The width of the second furrow is varied by easing up on the clamp bolt C, moving the beam 1) to the right or left, as desired, and then setting up the nut c on the clamp bolt C, clamping the beam D in the proper position. The shifting lever S is provided with a suitable spring pawl 8' adapted to engage the teeth of the sector P, which sector is preferably provided with end lugs r to prevent the pawl from being thrown entirely off of the sector. see Fig. 6. This spring pawl is operated by the rod and the handle 8 as shown in Fig. 1. The forward end of the beam D provided with a curved bar D held between the side plates as shown in Fig. 1. This bar is curved. as at (P, to give the desired resiliency when the two beams are spread apart, and extends transversely across the front of the implement. as shown at d in Fig. 1. Connected to this portion (Z of the bar D is the L-shaped bar D which is secured between the side bars of the draft beam D. The portion d of the bar D is provided Cir with a series of perforations d, as shown in Fig. 7, through which pass the bolts k and lrfor adj ustably supporting the metal straps K and K, which are perforated at the lower ends, as at 71: to permit the passage therethrough of the draw-bar L, whose lower rear end is secured to the main casting A, and whose forward end is provided with a hook Ii r any other suitable device, for connecting the same to the source of motive power, such as a team of animals, a tractor engine, a pull-rope, or the like. By this arrangement the forward end of the draw-bar may be raised or lowered, or moved to the right or left, so as to adjust the hook L to the proper position for hooking on to the team, or other source of motive power, and to get the line of pull on this draw-bar in the proper direction.

The operation of the device is as follows: The width of the furrow being predetermined. set the draft bar D at the proper distance from the bar D, which may be done by means of the clamp bolt C and nut c, and then by means of the shifting lever S move the main casting so that the bar D shall be at the proper distance from its end of the main frame, which will determine the width of the first furrow; the distance between the two bars D and D de termining the width of the second furrow. Then release the spring pawl a, hook on the implement to the team, or tractor engine, and the parts are ready for the operation of plowing. Either end of the frame may be raised or lowered by means of the hand levers Q, so as to set the main frame in the proper position relative to the surface of the ground.

\Vhile I have shown two draft beams D and D with the implements attached there-- to. it will be obvious that by simply lengthening the main castin A one or more additional beams may be mounted on said casting, in which event, of course, the main frame would have to be lengthened transversely to permit the increased length of the main casting A. It will be seen that the sector R may be moved to any desired position on the cross bar M by simply easing 1p on the nuts of the LJ-bolts r, sliding the sector to the desired position and clamping the U-bolts in place again. In this way the length of vibratory movement of the main casting A on the main frame may be varied. beyond the limits possible where the sector, on which the shifting lever is mounted, is secured at a given point only on the main frame.

It will be obvious that various modifications might be made in the herein described apparatus, and in the construction. combination and arrangement of parts which could be used without departing from the spirit of my invention.

Having thus described my invention what I claim and desire to secure by Letters Patent of the United States is 1. In a disk plow and subsoiler, the combination with a draft beam curved downward at its rear. of a journal bearing block mounted on the heel of said draft beam and pro jeeting laterally and downwardly therefrom, with a plow disk journaled in said bearing block. and a housing black for the shank of the subsoiler also secured to the heel of the draft beam and projecting laterally therefrom on the opposite side from said journal bearing block, said housing block being pro vided with a downwardly-disposed slot inclined slightly outward, said clot being located on the opposite side of the draft beam from said plow disk, and a subsoiler having its shank held in said slot, substantially as described.

2. In a disk plow and subsoiler, the combination with a draft beam curved downward at its rear, of a journal bearing block mounted on the heel of said draft beam and projecting laterally and downwardly therefrom, with a plow disk journaled in said bearing block, and a housing block for the shank of the subsoiler also secured to the heel of the draft beam and projecting laterally therefrom on the opposite side from said journal bearing block, said housing block being provided with a downwardly-disposed slot inclined slightly outward, said slot being located on the opposite side of the draft beam from said plow disk, a. subsoiler having its shank passing through said slot, and a clamp screw mounted on said journal bearing block and projecting into said slot and adapted to clamp said shank in the desired position, substantially as described.

3. In a disk plow and subsoiler, the combination with a draft beam curved downward at its rear, of a journal bearing block mounted on the heel of said draft team and projecting laterally and downwardly therefrom, with a plow disk journaled in said bearing block, and a housing block for the shank of the subsoiler also secured to the heel of the draft beam and projecting laterally therefrom on the opposite side from said journal bearing block, and a subsoiler having its shank engaging in said housing block on the opposite side of the draft beam from the plow disk, with a goose-neck hinged to said housing block, and a trail wheel connected to said goose-neck, substantially as described.

4. In a disk plow and subsoiler, the combination with a draft beam curved downward at its rear, of a journal bearing block mounted on the heel of said draft beam and projecting laterally and downwardly therefrom, with a plow disk journaled in said bearing block, and a housing block for the shank of the subsoiler also secured to the heel of the draft beam and projecting laterally therefrom on the opposite side from said journal bearing block, said housing block being provided with a downwardly-disposed slot inclined slightly outward, said slot being located on the opposite side of the draft beam from said plow disk, and a subsoiler having its shank held in said slot, with a goose-neck hinged to said housing block, and a trail wheel connected to said goose-neck, substantially as described.

5. In a disk plow and subsoiler, the combination with a draft beam curved downward at its rear, of a journal bearing block mounted on the heel of said draft beam and projecting laterally and downwardly therefrom,

with a plow disk journaled in said bearing block, and a housing block for the shank of the subsoiler also secured to the heel of the draft beam and projecting laterally therefrom on the opposite side from said journal bearing block, said housing block being pro- "ided with a downwardly-disposed slot inclined slightly outward, said slot being located on the opposite side of the draft beam from said plow disk, a subsoiler having its shank passing through said slot, and a clamp screw mounted on said journal bearing block and projecting into said slot and adapted to clamp said shank in the desired position, with a goose-neck hinged to said housing block, and a trail wheel connected to said goose-neck, substantially as described.

In testimony whereof, I aflix my signature.

AUGUSTA P. MCKAY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents Washington, D. G. 

